Prevent context deadline error propagation in GetCommitsInfo (#20346)

* Prevent context deadline error propagation in GetCommitsInfo

Although `WalkGitLog` tries to test for `context.DeadlineExceededErr`
there is a small chance that the error will propagate to the reader
before it is recognised. This will cause the error to propagate up to
`renderDirectoryFiles` and cause a http status 500.

Here we check that the error passed is a `DeadlineExceededErr` via error.Is

Fix #20329

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2022-07-13 23:24:29 +01:00 committed by GitHub
parent 07ec8288bf
commit fe09ee564d
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@ -8,6 +8,7 @@ import (
"bufio"
"bytes"
"context"
"errors"
"io"
"path"
"sort"
@ -62,9 +63,10 @@ func LogNameStatusRepo(ctx context.Context, repository, head, treepath string, p
})
if err != nil {
_ = stdoutWriter.CloseWithError(ConcatenateError(err, (&stderr).String()))
} else {
_ = stdoutWriter.Close()
return
}
_ = stdoutWriter.Close()
}()
// For simplicities sake we'll us a buffered reader to read from the cat-file --batch
@ -354,7 +356,7 @@ heaploop:
}
current, err := g.Next(treepath, path2idx, changed, maxpathlen)
if err != nil {
if err == context.DeadlineExceeded {
if errors.Is(err, context.DeadlineExceeded) {
break heaploop
}
g.Close()